Question

Calculate the acceleration of a mobile that at 4s is 32m from the origin, knowing that its initial speed is 10m / s.

Answer 1

-1 m/s²

Step-by-step explanation:

Given:

Δx = 32 m

v₀ = 10 m/s

t = 4 s

Find: a

Δx = v₀ t + ½ at²

32 m = (10 m/s) (4 s) + ½ a (4 s)²

a = -1 m/s²

Answer 2

5.5 m/s^2

Step-by-step explanation:

I believe this is the answer > using the formula a= v-v0/t

Hope this helps!